Home / 692,084.51-1,038,280.46-212,378.82

Finding the Fourth Proportional to 692,084.51, 1,038,280.46 and 212,378.82

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Solution

The fourth proportional to 692,084.51, 1,038,280.46 and 212,378.82 is: 318,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,084.51 : 1,038,280.46 = 212,378.82 : x
  2. Step 2: Convert to fraction form
    692,084.51/1,038,280.46 = 212,378.82/x
  3. Step 3: Cross multiply
    692,084.51x = 1,038,280.46 × 212,378.82
  4. Step 4: Simplify right side
    692,084.51x = 220,508,777,861.96
  5. Step 5: Solve for x
    x = 220,508,777,861.96/692,084.51
  6. Step 6: Final answer
    x = 318,615.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.